... for overload and phase-failure protection Application The thermal relay are suitable for overload protectio of AC motor operated ... on 8-hour duty or uninterurupted duty.The overload protected AC ... .7-2.1,2-3,2.8-4.4,4-6,5.2-8,7-11,9-13YTH-N20YS-K12 ... ,22,29,351.7-2.1,2-3,2.8-4.4,4-6,5.2-5,7-11, ... K9542,5434-50,43-65 YTH-N12 Overload Thermal Relay